KBB.com 5-Year Cost to Own Awards. Only 68,991 Miles! Delivers 23 Highway MPG and 16 City MPG! This Chevrolet Tahoe delivers a Gas/Ethanol V8 5.3L/325 engine powering this Automatic transmission. WHEELS, 18 X 8.5 (45.7 CM X 21.6 CM) ALUMINUM WITH HIG...